Decaffeinizer and coffee saver



Feb. 19, 1935.

A. H. BRoDx-:N

DECAFFEINIZER AND COFFEE SAVER Filed April 1o, 1954 w if# A. ff,

HBTOdeTL Patented' Feb.

UNiTED s'mfrls.

PATENTfoFI-ios z claims.

Thisinvention relates to devices `for removing fromV coffee the caffein and removing thein vand tannin vfrom tea, the general objectof the invention being to providefa device which may be 5 readily'applledto coffee `urnsor teapots and which isso constructed that while all the aroma and fragrance of the'tea or coiieeI is retained,

yet in which almost all of the caii'ein and tannin of the coffee and the thein andV tannin oi?V the tea arewithheld or separated.

l 'lhere are threechemical substances in coffee, namely,` the oil'which `gives the aroma, caiein and tannin and, as before stated, the caiiein and tannin are `deleterious to the human system and;

therefore,` `much `of,

decaiieinized.

the coffee on the market is As .beforest'ated, the object of the present invention is to provide'a simple Yapplianceadapted tobe'used in connection with a coifeeurnfor pot and insertedwithinthe saine,'which supports a bed of coffee but permits the passage of water rapidly through the bed and which provides a trap as it were for` catching any possiblercoiee grounds and preventing these coffee grounds from entering the pot itself, ,thus makingfit possible to carry down with the boiling water yaromatic oil of the coffee `without touchingjthe` caiein and tannin which, to be removed'from the coffee itself and carried into the water, must be either steeped or boiled to some extent.

A further vc ibject is to provide in a device of this kind a perforated piateof German'silver or the likewhich supports 'the bed of coiiee'and- 'below this `a bag, as v,it may be termed, of fabric woven'of linen threads extending in one direc,- tion and silverthreads extendingin the other direction,l the purpose of the silver threadsjbeing "to` reinforce the linen andto help retain the caifein `to some extent. Y

Other'objects will. appear in the course 'of the following description. Y

H My invention is illustrated inthe Vaccompanying drawing, Vwhereinzi y Figure 1V is avertical'sectional View through the Aupper portion of a coiee urn andshowing my decaffeinizer disposed therein;

FigureZ isa section on the' line 2--2- of Figure 1 but omitting Walls of the coffeefurn;

Figure 3 is a fragmentary vertical .section on an enlarged scale;

VVlitigure 4 is a fragmentary `vertical section .showing .my decafieinizer applied to another form f coffee pot. l

Referring to the drawing, ,it W111i bei seen that .the inner ring" has radial strips 19. These strips V`4of a symmetrical hopper-shaped portion desig- 5 f '.natedY 10 having any 'desired diameter, the wall 10 being inwardly eitendedat 11; v

l Extending downwardir'om the inward exten- `sion of the wall 11 'areaiplurality voiffrnetal strips 12 which are preferably integral with the wail '11, 10 lIihe wallsY 10;11 and the strips l2 arefpreferably inadeoi 'German silver, `aluminum or the like.

Disposed parallel to thestrips l2 and extending downward in opposed relation thereto are the vertical Vstrips 13.* Screws 144 extend through these two" setsof stripsand'hold them Vin con- Junction .with each othervand support a layer of cloth `designated' l5between thetwo series of strips, "I'hisjclothfis madeV of linen and silver 'threads' andeidiendsl inthe form o! a cylinder. The lower ends ofthe strips'12 are inwardly and then downwardlybent asiat 15al and resting upon the'le'dge sojformedare aipairof Vrings 16 and 17, the outer -rirfgjlti having radial stripsl while overlieeachoth'er.These strips'lS, 19', of course, cross at the' center o f the" utensil and are held in engagement with." eachother at this pointby a knob20. `Disposed betweenthe strips 18 and 19 isa cloth 21-Yforme'd ofsilverand linen'threads, asheretofore stated, the margin of this cloth be- `ing bent downward to extend-between the rings 1'7 andil,` the rings 17 constituting 'alclamping ring ,lio1dingthe' cloth in 'place against the ring 16. .'I'liisbottomQas it'may be'` called, for the bag 15 inaybereadily removed butV has liquid-tight conftaet with the cloth.y 15.so that all the liquid passing downward 'intothe bag formed of the parts 15 and 21 niust 'pass through this cloth.

The angularly bent ends of the strips l2 are con- 40 lnect'ed by airing 22 riveted to these angularly bent ends.

l It'will be seenV that the screws 14 pass throughlthe. strips 13 vand 12 and through the cloth 15, thus clamping thecloth 15 inplace.

.Adapted toY besupported upon the inwardly Vextending portionll of the body l0 is a metal screen designatedgenerally 23 vwhich isconcavoconvex and provided with a large number of very ne perforationsgfAt its periphery, the metal of the screen is extended inward at 24 and then exe-,50

tendsdownward at 25 toform a. neck insertible into the space definedb'yV thestrips 12 and this Aneck is adapted to beheld to the strips 12 by the upper screws 14.., The purpose of having the screen concavo-convex `is to! secure the greatest '55 possible area of perforated portion. This screen is preferably made of German silver, aluminum or the like and is intended to'supporta layer of pulverized coffee designated C.

The reason for using German silver for the screen, for the'body l0 and the strips l3and 12 vand rings 16, 17 and 22, is that German'silver is very durable but lighter and cheaper than real silver. It does not rust, nor does itcorrode, nor does it release its metallic elements on coming in contact with acids or alkaloids.

The cloth bag formed bythe parts 15 and 21 is The purpose ofusing the silver threads is two-fold in that the .silver threads reinforce the linen threads and also help to retain vthe cafein. The fabric, however, vis dense# enough to allow the water to pass through within the space of about four minutes as itis being drawn through `the faucet of theurn and poured through the top. The purpose of putting vthe cloth between the uprightstripsvand.holding the'cloth in place by., the Yscrews'is to hold the cloth firmly in place, preventing any tendency of the cloth to.

sag or get out of place, and yet permit Vthe cloth to be removed and renewed when necessary. In

actual practice,"this cloth secures.v a retention of coffee pot. A quartl f boiling water is poured through the. decaffeinizer into the urn. Then placethe necessary amount of dry, pulverized coffeel on the top screen. A quart of vboiling water is then poured over the coffee slowlyallowing time enough to run throughV the second screen bottom. This isdone as many times asis practicable until the desired strength has been secured. When this hasbeen done, the attachment is removed, washed, cleaned, dried and hung up ready for the next operation. When'th'e boiling water is poured on pulverized coiee, .the oil in the coffee is immediately dissolved andcarried downward into the coffee urn, this being particularly true if coifeey is pulverized. Because of .the rapidity with which the water .passes downward, however, the caifein and tannin have'hardly been touched, itJbeing necessary that therground or pulverized coffee must be steeped or boiled in much as not a speck of the coiee `.grounds finds its way to the bottom of the coffee urn because these grounds are caught by the bag 'formed by the cloth 15 and 21, it makes it impossible to disysolve the caien and tannin fromthe coiee so that the coffee is not bitter. Thesame is true of making tea. .4 In this case, of course, the tea is finely Lpulverized and. then the lboiling water poured through it. inthe lsame way asV with the coffee. The thein and tannin will then be Vretained withinV the'tea leavesgbecause the tea leaves are notlsubjected to any steeping action, as no v`particle of tea viindfs its wayto the bottom of the pot. Y.

It will be seen that my device permits the quick passage ofY the VVWater through .'the'bed of coiiee andl downwardfinto the urn and this greatly decreases the chances of ltannin or coffee being taken from the coffee itself. I have found in actual practice, this device saves about half of the coffee because of the double strain-A ing process and theV pulverization'of lthe coffee releases its entire strength and also saves half The taste of the coifee is greatly .improved K and it ,can be taken by any vone regardless of how nervousthe person is 'and without -aifecting their sleep. r'

It will be noted that in Figure@ 1 have inuswoven of silver crossed with linen threads in the ratio of 1 to l. 15

t'rated the fact .that the body 10 may be used inconnection with a coffee pot which is not pro'- vided with .the Vinner wall In this case, the upper end of the cylinder 10 or body can engage the upper edge 'of the pot by the overturned lip or flange 10e. l Y Y The vpurpose of using a combination of linen andsilver threads in.. the cloth sections 15 -and 21 is merely to stiien the cloth/andmake it retainits shape better, vWhen I speakof, silver g threads, I mean. threads of fabric suchras linen which are wrapped with a thinlstrip of silver to thus st iien thethrre'ads s0 that .the lnenwll keep its shapebetter than if the cloth was formed of linen threads alone'. f.,

I'claim'z'- f 1. An articleV for. ,the purpose described .in-

cluding ,a cylindricalbody having 'aninwardlyvextendingv annular Aflange at its lower. end, .the iiange .being continued downward in the forni of a plurality of yvertical strips, and at their ends theseQstrips being formed tofprovi'de inwardly extending portions, outer strips disposed-'Lover the rst named strips, a cylindrical clothfof. textile fabric Yextending around and exteriorlyito the inner or` irst named strips and overlaidlbyth'e second named strips, screws passing through .the y outer strips, cloth and theinner `stripsand ldetachably .holding these parts to eachother, `a

bottom comprising aninner. ring. and an outer ringadapted to rest upon the inwardly extend,-V .ing ends of the rst named strips and be supported thereby, the outer and inner ringsfhaving radial strips, a cloth disposed between the outer. Y and innervradial'strips and havingits marginf body, the margin` of the metalfscree'n extending inward and then downward .and fitting on. the inside of.\'thev inner mst-mentioned strips, said screen being upwardly convex and being finely y, l perforated. l Y

order todissolvethe caffein and tannin.v V Inasy flange being continueddownward in thefformlA of a. plurality of vertical strips,` and at their yends these strips being formed toprovide inwardly extending portions,outer strips disposed overvthe rst named strips, a cylindricalcloth of textile fabric extending varound and exteriorly *tothe fk5 second named strips,vscrewspassingthroughthe l.

inner or first named strips andyoverlaid bythe outer strips, cloth and the' inner strips and'detachably holdingthese partsyto eachother, 'a

bottom comprising an innerringand an outer ring adapted to rest uponthe` inwardly'extending ends of the rst named strips and Abe supported thereby, the outer and inner rings having 1 radial strips, a clothdisposed between the outer and inner radial strips and'having'` its margin Cil extending downward between said rings, the cloth being clamped thereby, a. metal screen adapted to be removably disposed within the body, the margin of the metal screen extending inward and then downward and tting on the inside of the inner mst-mentioned strips,V said screen being .upwardly convex andl being nely perforated, the cloth disposed between the outer and the inner vertical strips and between the strips of the bottom being woven of linen threads extending in one direction andv German silver threads extending in the opposite direction.

ALBERT H. BRODEN. 

